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POLinked list returning variables from a function
 

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  1. POLinked list returning variables from a function
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    <p>Hi i am doing a project for college and i am stuck at a part. I am using linked list in c++. I have to set up a class called Book which has variables 'title', 'author', 'ISBN' and 'availability'. I set it up like this in my main using a prototype for the function and the function being called elsewhere.</p> <pre><code>//the prototype list&lt;Book&gt; bookSetUp(); int main() { //the variable in main that will have the list list&lt;Book&gt; bookList; //the list being populated in function elsewhere so as to not mess up the main bookList = bookSetUp(); // more stuff in main } //sets up the book vector list by populating it //title, author, ISBN, availability list&lt;Book&gt; bookSetUp() { //creates a temp vector to pass it back to the actual vector to be used in the main list&lt;Book&gt; temp; //The items that populate the list Book a("A Tale of Two Cities", "Charles Dickens", 1203456, true); Book b("Lord of the rings", "J.R.R Tolkein", 123456, true); Book c("Le Petit Prince", "Antoine de Saint-Exupéry", 123457, true); Book d("And Then There Were None", "Agatha Christie", 123458, true); Book e("Dream of the Red Chamber","Cao Xueqin",123459, true); Book f("The Hobbit","J.R.R Tolkein",123467, true); //pushes the items into the vector temp.push_back(a); temp.push_back(b); temp.push_back(c); temp.push_back(d); temp.push_back(e); temp.push_back(f); //returns the list list&lt;Book&gt;::iterator pos; pos = temp.begin(); while(pos != temp.end()) { return pos; if(pos != temp.end()) { pos++; } } } </code></pre> <p>I know that my links between files are grand i just cant get the 'temp' list to return the values. Any help would be greatly appreciated. Thanks</p>
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    1. USDennington-bear
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    1. COWhat are you trying to do in the `while(pos != temp.end())` loop? It currently immediately returns `temp.begin()`
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      1. USsimonc
    2. COsorry about the mass of code!I feel its better than trying to communicate everything
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      1. USDennington-bear
    3. COhmm. and what exactly are you trying to do? i have a feeling that you want something like what 'yield' does in some languages
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      1. USHayri Uğur Koltuk
 

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